Is Slow mo automatic?

Green Hornet

Green Hornet

Veteran
My understanding is that while using 24p, and looking to do slow motion, I shoot at some faster frame rate, this is an automatic process?

Or do I have to do something in post?

Also can I lay down a track of sound in this process, or would I have to use an external source for sound, and dub it in?

Fill me in on the process.

Thanks
 
The sound depends on what you are doing with it. If you are mixing real time sound with slowed video, just (I am assuming) use the sound recorded with the HVX and put it in after changing the playback rate of the video. If it's slowed sound, that would depend on your software.

IOW, As I understand it, the HVX is recording everything (including sound), but at a faster (or slower) frame rate. It all depends on how fast you play it back. No?
 
Great Thread! I am also wonderiing about the automatic nature of the slow-motion. When I've rented the Varicam, I've had to use the Panasonic DVCPRO HD plug in and re-render each frame and it was a nightmare even on my G5. I shot 8 hours of HD footage and had to make my selects and then render in order to see it play back in slow motion. It was also very buggy and had a weird workflow. I think I heard a vague rumor that the P2 card was automatic, but recording to a harddrive required the flag pulling business and some rendering. Info on this would help to clear up what media to purchase. If the P2 is auto and as simple as putting the 60fps footage on a 24p timelime, then that seems the way to go.

Any and all info appreciated.


Justyn
 
It is "auto". When you shoot in the "native" mode (i.e., 720/24pN or 720/30pN) the camera sets the timebase to 24p or 30p, and the clips play back in the camera or on the timeline with the slow-motion effect intact.

If you want to do it the VariCam way you can, by choosing the normal mode (720/24p or 720/30p or 720/60p) but I don't expect many of us to choose that when the "native" mode saves space on the card and lets you skip a step in post.

Regarding audio: the audio is recorded, however, it's only relevant when playing back the clip at the same speed it was captured at. Which, with a slow-mo clip, would mean never. So it's of limited value. When playing back an off-speed clip in the camera you won't hear any audio, but the audio is recorded on the card and you can go find the audio file in the .MXF file and import it and re-attach it, but just recognize that it's of limited usefulness because it won't match up with the video. The audio is recorded in realtime and is meant to be played back in realtime. The video is captured in realtime but is not played back in realtime, so the two don't line up.
 
Barry_Green said:
It is "auto". When you shoot in the "native" mode (i.e., 720/24pN or 720/30pN) the camera sets the timebase to 24p or 30p, and the clips play back in the camera or on the timeline with the slow-motion effect intact.

If you want to do it the VariCam way you can, by choosing the normal mode (720/24p or 720/30p or 720/60p) but I don't expect many of us to choose that when the "native" mode saves space on the card and lets you skip a step in post.

Regarding audio: the audio is recorded, however, it's only relevant when playing back the clip at the same speed it was captured at. Which, with a slow-mo clip, would mean never. So it's of limited value. When playing back an off-speed clip in the camera you won't hear any audio, but the audio is recorded on the card and you can go find the audio file in the .MXF file and import it and re-attach it, but just recognize that it's of limited usefulness because it won't match up with the video. The audio is recorded in realtime and is meant to be played back in realtime. The video is captured in realtime but is not played back in realtime, so the two don't line up.
Click to expand...


Thanks, that is what I wanted to know.
The audio is important because I may want to line up a que point.
In other words, say I were shooting the pool table shot, and I wanted slow motion of the balls rolling, and at the point of contact, I wanted the sound of the balls "breaking". I could still use the audio from the real sound, and line up the point of the break in slow motion..
 
Barry and all.. that's great news. I wasn't able to view the footage we shot in slow motion and I had to render in post off the varicam. This will make showing the footage to the client so much more pleasing. I can't wait to shoot some wakeboarding with this camera. Just hope I can get a good housing and I'll have to figure out the video monitoring and the remote since I'm used to using the Lanc on my GL1.

This forum has become an incredible resource. T hanks to you all and merry christmas.



Justyn
 
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